Health muffler



G. JENISON HEALTH MUFFLER June 11, 1957 2 Sheets-Sheet 2 Filed July 26, 1956 m .mi

INVENTOR George Jen/'son United tates Patent HEALTH MUFFLER George .lenisom Yuba City, Calif.

Application .lilly 26, 1956, Serial No.y 600,348

, s'cnims. (ci. rs-30) Y This'invention relates to mufflers for vehicles.

`It'is any objectV of the present invention to provide an improved' muffler for vehicles which will eliminate and neutralize" poisonous,` carbon monoxide gases discharged frominternall combustion engines whereby to render the exhaust ga'se'sharmlcss. f

ltisfanotlierobject of the present invention to provide afmufllr of ltheabovev type'wherein the carbon monoxide gas from 'the'internal combustion engine is admixed with fresh ainand then converted to carbon dioxide, a harmlessfgas.

It is 'stillianother object of the present invention to provide amuiller of the above type wherein the exhaust gases"are"flltered after the carbon monoxide has been convertediitc')"carbony dioxide whereby to render the exh'aust gases fharmless in amore complete manner.

Other objects of the invention are to provide a mufer bearingthfabovelobjects in mind which is of simple construction, has a minimum number of parts, is inexpensive tornanufacture'and eilcient in operation.

For other'objects and for a better understanding of the invention, reference may be had to the following detailed" description taken in connection with the accompanying drawing, in which:

Figure 1 is atop plan view of a preferred embodiment of the present invention;

Fig. 2 is an exploded perspective view of certain of the parts of-:the invention;

Fig. 3 isa longitudinal vertical sectional view taken along the line`3--3of Fig. l;

Figi 4 is-atransverse sectional view taken along the 1ineV4-"4'of"Fig; 3;

Fig.lv 5 isa transverse sectional view taken along the linet 5"-5of Fig; `3;

Fig. 6is'a transverse sectional View taken along the line'v 6"--6lL ofFig; 3;,and

Fig'.- r7'is an`` exploded perspective view of certain of the parts of the invention.

Referringinow morev in detail, lil represents an elongated hollow cylindrical casing while 11 represents the exhaust pipefrom the internal combustion engine, substantially as `illustrated.

The casing '1is provided, at the rear end, with a closure 12 (FigjiZ) having areduced depending skirt portion13 which lits snugly within the end of the casing and which is securedthereto bythe fastening means 14 (Fig. 3). 'Iheclosure plate 12 at the top thereof is provided with theioutlet'pipe 15 opening onto the surrounding atmosphere.4

A drain plug 16 is provided at the bottom of the casing 10 adjacent the rear end closure 12.

As shownin'Fig; 2, a hollowy cylindrical screen 17 having a front end closure 18 of semicircular shape and having a central opening 19 is adapted to t within the casing*llldntoabutrnent'with the end closure plate 12, the screen v'having/thefse'rnicircular top opening 2l).` The screen 17 is provided with the rear closure 21 (Fig. 3)

Patented June 11', 1957 having a semicircular bottom opening 22. A semicylindrical filter medi-um 23 is adapted to ht within the lower portion of the screen 17 through the rear opening 22 and is provided at the forward end thereof with the frusto-conical bore 24.

A baille assembly fits into the casing 10 adjacent the screen and includes the hollow cylindrical casing 25 having a rear end closure 26 provided with a frusto conical spout 27 which iits within the opening 19 of the screen and the bore 24'of the filter medium, the spout 27 having an end closure 28 as well as perforations 29;

A plurality of circular baille plates 36, 31, 32 and 33 (Fig. 7)are positioned within the casing 25 in longitudinally spaced relationship by means of the spacer rings 3d, 375, 36, 37 and 38. The baille plates 36 and 32 are provided with a pairvof semicircular rearwardly struck openings 39`having the rearwardly struckv portions inclined to the plates themselves, as shown in Fig. 3, while the baille plate 31is provided with three such rearwardly struck openings lill The baille plate 33 is provided with five such rearwardly struck openings 4l. The casing 25 is providedwith a front end closure 42 having a plurality of angularlyspaced, rearwardly struck semicircular openings 43'and the central portion thereof mounts the spark plug 44 having the spark gap disposed on the inner face of the end closure 42. A frusto conical shield d5 surrounds the spark plug and is secured to the end closure l2 by meansof the ilange i6 and the mounting means 47,' the outer end of the shield 45 being open. A stainless steel pipe 47 is secured to the bottom of the exhaust pipe 11, the latter being provided with an opening therethrough which receives therewithin the wire 48 which passes through the tube 47 for connection with the ignition system of the car.

A frusto conical closure plate 49 is secured to the front end of the casing 10 by means of the depending skirt 50 and fastening means 51, the closure 49 having a circular central opening which receives therethrough a frustoconical pipe or conduit 52 concentrically disposed about the exhaust 11,\the rear end of which terminates at the same point as 'the rear end of the exhaust pipe 11. An upwardly extending conduit 53 is mounted on the forward end of the conduit 52 and connects with the horizontal cylindrical member 54 by means of the joint- 55, the latter being above and parallel to Vthe exhaust pipe 11. The forward endV of the hollow cylindrical portion 54 is connected to the rear end of the enlarged, hollow cylindrical casing 56 within which is mounted the blower 57 by means of the braces 53, the blower 57 including the'forward vein or fan 59 and the rear fan 60which communicate with the interior of the cylindrical casing 54. A circular screen 61 is mounted on the forward openend of the casing 57 by means of the rim flange 62v while a hollow, cylindrical enlarged screen 63 is in turn mounted on the outside of the rim flange 62 by means of the flange portion 64. The plates 65 and 66 are mounted within the casing 54 and abut the ends of the valve member 67 rotatably mounted on the pin 68 whereby to control the passage of fresh air through the screen 63 and 61 drawn'rearwardly due to themotion of the vehicle and due also to the blowing action of the blower 57,

which air will pass downwardly through the conduits 55V and 53Y intoy the conduit 52 where it will mix at the rearv end thereof at the portion surrounding the shield 45 with the 'exhaust gases from the engine to pass into the baffle memberthrough the baille openings therewithin where the carbon `monoxide will be ignited by the spark plug 44 to combine with the oxygen from the fresh air to produce harmless carbon dioxide.

medium 23 through the perforations 29 and then up- This treated exhaust gas will then pass into the spout 27 where it 'will' pass into the'iilter wardly into the screen 17 where it will be released into the atmosphere through the outlet 15.

The casing and casing 56 will be suitably mounted on the bottom of the vehicle frame, as will be obvious.

The muier parts will preferably be formed of stainless steel. and may be of any shape in cross section, for example, round, oval or square according to the kspace requirements.

The filter medium 23 `is preferably of aluminum to precipitate the small amount of hydrocarbon.

The damper 67 is normally retained in the closed position by a weight 68 at the bottom thereof and is opened by the air pressure from the fan 57 and the movement of the vehicle. The lter medium 23 is composed of aluminumzlings which may be fed upwardly through the screen opening 22.

Suitable filter mediums will be disposed in the upper portion of the screen 17 to complete the filtering action on the exhaust gases before their exit through the outlet 15. Such filter materials may consist of raw sheep wool, asbestos ber, rock wool, or lime with bone ash. These filter materials can be sprayed with sodium sulphate as a dense solution which prevents the ignition of the same and will filter out the petrol or gasoline gases. The drain plug 16 will be used for washing out hydrocarbon through the exhaust pipe. The lter material need never be changed. The rock wool will protect and cool the muffler. The filter material may be charged through the opening 20 at the forward end of the screen above the closure portion 18. The filter materials to be placed within the upper portion of the screen 17 may be mixed with powdered charcoal, plaster of Paris, or gypsum and a strong solution of sodium sulphate, which will bind the filter material into a porous cake-like mass.

The above muliier and its iilter have been tested for 78,000 hours on various engines and when the lter was inspected, it was substantially the same as when originally placed in the muffler compartment. The filter material elements of bone ash, slaked lime (dry) and powdered charcoal are mixed dry and then mixed with a strong solution of sodium sulphate into a dough-like mass whichs dried and then inserted into the upper filter compartment of the screen 17 with the wool, and asbestos.

The damper 67 due to the weight 68 will automatically close when the device is not in use to prevent the gases or smoke from escaping.

The shield 45 will prevent the spark plug from carbonizing.

While various changes may be made in the detail construction, it` shall be understood that such changes shall be within the spirit and scope of the present invention as dened by the appended claims.

Packing material 70 surrounds the fresh air conduit 52 within `the forward portion of the casing 10 and preferably consists of rock wool.

What l claim as new and desire to Patent of the United States is:

1. A muier for an internal combustion engine comprising an elongated hollow casing having a front closure and a rear closure, an outlet associated with said rear closure communicating with the atmosphere, baliie means mounted Within `said casing near the center thereof and including a rearwardly extending spout at `the bottom thereof, said spout being perforated, spark plug means mounted at the forward end of said baffle means whereby to ignite `the gasespassingy through `said baffle means, iilter means within said casing rearwardly kof said baffle means adapted to remove hydrocarbons from the ignited gases before they pass `through said outlet, conductor means connected to said spark plug means with the ignition system of said enginea fresh air conduit positioned within the forward end of said casing and extending forwardly thereof, said front closure means surrounding the protect by Letters l forward end of said casing and fresh air conduit, the exhaust pipe of the vehicle at the rear end thereof being received within said fresh air pipe with the rear end of the exhaust pipe lying substantially in the same plane as the rear end of said fresh air pipe, and blower means for drawing fresh air into said fresh air pipe, said baffle means comprising a hollow casing fitting within said lirst casing and having a front and rear closure, said spout being mounted at the bottom of said rear closure, said front closure having a plurality of openings adapted to permit the passage of mixture of fresh air and exhaust gases from said exhaust pipe and fresh air conduit, and a plurality of longitudinally spaced bale plates within said casing, each ofsaid baie plates having openings adapted to permit the passage therethrough of the fresh air and exhaust mixture and the ignition of the same to i convert carbon monoxide to carbon dioxide.

2. A muler according to claim 1, said spark plug means comprising a spark plug mounted in the center of said front closure plate and having the spark gap disposed on the inner face thereof, and a frusto conical shield surrounding said spark plug having its larger end secured to said front closure whereby to protect the spark plug against carbonization, the smaller end of said shield being open, an elongated tube secured to the lower end of said exhaust pipe, said tube and exhaust pipe having openings, receiving therethrough saidconductor means connecting the spark plug with the ignition` system.

3. A mufer according to claim 2, said blower means comprising an upwardly and forwardly extending conduit connected to the forward end of said fresh air conduit,

said forwardly and upwardly extending conduit being` connected to a iirst horizontal casing, a damper positioned within said casing normally closed by its own weight but adapted to be opened upon operation of the vehicle and mulenand a second casing connected to the forward end of said damper casing, the forward end of said second casing being open, screen means secured across the forward end of said second casing, an electric blower means positioned within said second casing adapted to draw fresh air inwardly through said screen and downwardly through said damper into said fresh air conduit, said blower including a forward suction vein and a rear push vein.

4. A muier according to claim 3, including a second screen surrounding said lirst screen.

5. A mufer according to claim 3, said :filter means comprising a hollow screen adapted to fit within the rear end of said casing and having the front and rear closures, said rear closure having a lower opening, said front closure having an upper opening, said front closure also having a lower opening receiving said spout therethrough, and semicylindrical iilter material disposed within said screen at the lower portionthereof adapted to remove hydrocarbons from the ignited gases.

6. A muffler according to claim 5, said semicylindrical filter material comprising aluminum lings.

7. A mutlier according to claim 6, including further filter material in the upper portion of said screen adapted to further filter the gases after passing through said aluminum filings, said further iilter material comprising bone ash, slaked lime, powdered charcoal mixed with a strong solution of sodium sulphate, wool and asbestos.

8. A muffler according to claim 7 including rock wool packing surrounding said fresh air conduit Within the forward portion of said casing, said further filter material being formed into cakes and dried.

References Cited in the le of this patent UNITED STATES PATENTS 

